In order to apply the mobile technology and the information technology for the applications in the learning environment, the PDA, wireless, and the location identification feature provided by GPS are integrated for the development of the GPS/PDA Guide system. By using this system, the guided information can bind with its location automatically. The most important concept of the proposed system is that the guiding information can be constructed by users during the tour guide, which is different from the traditional guiding experience. In this paper, we propose a platform for the development of the GPS/PDA guide system. This platform includes the software resided at PC side and PDA side. In the PC side, a target based digital map generation tool is also designed. Currently, this platform is applied for the native education of Hwa-lien city in Taiwan and we will plan to promote the proposed platform and the application style to other guided based environments.